Actually I was just looking into this and didn't realize there was two different options for quest windows.
Code:
quest::popup(<Window Title>, <Window Text>)
quest::popup(<Window Title>, <Window Text>, <PopupID>)
quest::popup(<Window Title>, <Window Text>, <PopupID>, <Buttons>)
0 for OK, 1 for Yes/No
Phenominal, this makes my day, thanks again